package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.dao.SetmealDao;
import com.itheima.entity.ReservationVO;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.pojo.Setmeal;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 体检预约服务
 */
@Transactional
@Service(interfaceClass = OrderService.class)
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderSettingDao orderSettingDao;
    @Autowired
    private MemberDao memberDao;
    @Autowired
    private OrderDao orderDao;
    @Autowired
    private SetmealDao setmealDao;


    @Override
    public Result order(ReservationVO rVO) throws Exception {
        //检查当前日期是否进行了预约设置
        String orderDate = rVO.getOrderDate();
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(date);
        if (orderSetting == null) {
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //检查预约日期是否预约已满
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        if (reservations >= number) {
            //预约已满，不能预约
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //检查当前用户是否为会员，根据手机号判断
        String telephone = rVO.getTelephone();
        Member member = memberDao.findByTelephone(telephone);
        //防止重复预约
        int setmealId = Integer.parseInt(rVO.getSetmealId());
        if (member != null) {
            Integer memberId = member.getId();
            Order order = new Order(memberId, date, null, null, setmealId);
            List<Order> list = orderDao.findByCondition(order);
            if (list != null && list.size() > 0) {
                //已经完成了预约，不能重复预约
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        }
        //可以预约，设置预约人数加一
        orderSetting.setReservations(orderSetting.getReservations() + 1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);
        if (member == null) {
            //当前用户不是会员，需要添加到会员表
            member = new Member();
            member.setName(rVO.getName());
            member.setPhoneNumber(telephone);
            member.setIdCard((rVO.getIdCard()));
            member.setSex(rVO.getSex());
            member.setRegTime(new Date());
            memberDao.add(member);
        }
        Order order = new Order(member.getId(), date, rVO.getOrderType(), Order.ORDERSTATUS_NO, setmealId);
        orderDao.add(order);
        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }

    @Override
    public Map<String, Object> findById(String id) {
        Map<String, Object> map = new HashMap<>();
        Order order = orderDao.findById(id);
        Member member = memberDao.findById(order.getMemberId());
        Setmeal setmeal = setmealDao.findById(order.getSetmealId());
        map.put("id", id);
        map.put("setmeal", setmeal.getName());
        map.put("member", member.getName());
        map.put("orderDate", order.getOrderDate());
        map.put("orderType", order.getOrderType());
        return map;
    }
}
